The tls family of functions establishes a secure communications channel
using the TLS socket protocol. Both clients and servers are supported.

A TLS connection object is created by tls_client(3) or tls_server(3) and
configured with tls_configure(3).

This also includes a TLS-enabled version of netcat (nc-tls).

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NOTE! libtls will not coexist with the main libressl package, which
already contains libtls.  Uninstall this before installing libressl
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